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Raltitrexed Enhances the Antitumor Effect of Apatinib in Human Esophageal Squamous Carcinoma Cells via Akt and Erk Pathways

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单位: [1]Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People’s Republic of China [2]Radiation Oncology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, People’s Republic of China [3]Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People’s Republic of China
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关键词: raltitrexed apatinib antitumor ESCC Akt Erk

摘要:
Objective: Apatinib has been proved effective in the treatment of advanced gastric cancer and a variety of solid tumors. Raltitrexed is emerging as a promising alternative for treating advanced colorectal cancer in China. This work aims to study the combinatory antitumor effect of apatinib and raltitrexed on human esophageal squamous carcinoma cells (ESCC). Materials and Methods: Two VEGFR-2-positive human ESCC lines, KYSE-30 and TE-1, were treated with apatinib or raltitrexed, or both, then the cell proliferation rate was measured by MTS assay; cell migration and invasion were studied by transwell assays; cell apoptosis rate was determined by flow cytometry; cellular autophagy level affected was analyzed by Western blot analysis; finally, quantitative polymerase chain reaction (qPCR) was used to monitor transcription and Western blot was performed to check phosphorylation of apoptotic proteins after treatment. Results: Both apatinib and raltitrexed significantly inhibited KYSE-30 and TE-1 cell proliferation in a dose-dependent manner. Treatment with both drugs showed enhanced inhibitory effects on cell proliferation, migration, and invasiveness compared with apatinib monotherapy. Apoptosis percentages in both cell lines were also remarkably increased by the combined treatment. Moreover, the combination of apatinib and raltitrexed down-regulated mRNA level of the anti-apoptotic protein Bcl-2, while up-regulated pro-apoptotic protein PARP, Bax, and caspase-3 transcription. Western blot analysis showed that phosphorylation levels of Erk, Akt, and invasiveness-associated protein matrix metalloproteinases-9 (MMP-9) were decreased in the combination group. Conclusion: Taken together, these results indicate that raltitrexed enhances the antitumor effects of apatinib on human ESCC cells by down-regulating phosphorylation of Akt and Erk, implying a combination of raltitrexed and apatinib might be an effective option for treating esophageal squamous cell carcinoma patients.

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出版当年[2019]版:
大类 | 3 区 医学
小类 | 3 区 生物工程与应用微生物 4 区 肿瘤学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 生物工程与应用微生物 4 区 肿瘤学
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出版当年[2018]版:
Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Q2 ONCOLOGY
最新[2023]版:
Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Q3 ONCOLOGY

影响因子: 最新[2023版] 最新五年平均[2021-2025] 出版当年[2018版] 出版当年五年平均[2014-2018] 出版前一年[2017版] 出版后一年[2019版]

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第一作者单位: [1]Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People’s Republic of China
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通讯机构: [1]Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People’s Republic of China [*1]Cancer Center, Beijing Friendship Hospital, Capital Medical University, #95 Yong an Road, Xicheng District, Beijing 100050, People’s Republic of China
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